Home / 159,280.65-219,803.26-86,680.46

Finding the Fourth Proportional to 159,280.65, 219,803.26 and 86,680.46

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Solution

The fourth proportional to 159,280.65, 219,803.26 and 86,680.46 is: 119,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,280.65 : 219,803.26 = 86,680.46 : x
  2. Step 2: Convert to fraction form
    159,280.65/219,803.26 = 86,680.46/x
  3. Step 3: Cross multiply
    159,280.65x = 219,803.26 × 86,680.46
  4. Step 4: Simplify right side
    159,280.65x = 19,052,647,686.30
  5. Step 5: Solve for x
    x = 19,052,647,686.30/159,280.65
  6. Step 6: Final answer
    x = 119,616.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.